ECS Measurement SI Mode Trends



Statistics Run Date: 2017Aug28

  1. Introduction
  2. Rolling Monthly
  3. Since Start of Current Epoch
  4. Since Mid 2012
  5. Important Notes

I. Intro

This web page will help you track ECS measurement performance with regard to
total time on each of the three SI modes as well as the amount of the total time that
was cold (i.e. temperatures <= -118.7 degress C).


The present targets for the Total and Cold times are:

    Total time per SI Mode per measurement: 7600.0 seconds
    Fraction of total time the measurement should be cold: 60.0%
Back To Top

II. Rolling Monthly

Total ECS Time:

ECS Trending Table: Total Time
Stats TE_007AC TE_007AE TE_00B26
Total Expected Time (secs) 60800 53200 53200
Total Actual Time (secs) 54536 46740 49098
Delta From Expected (secs) -6264.00 -6460.00 -4102.00
% of Expected Total (secs) 89.70% 87.86% 92.29%

Cold ECS Time:

ECS Trending Table: Cold Time
Stats TE_007AC TE_007AE TE_00B26
Total Exp. Cold Time (secs) 36480.0 31920.0 31920.0
Total Actual Cold Time (secs) 26863 25806 18283
Delta From Expected (secs) -9616.03 -6113.06 -13636.82
% of Exp. Cold Total (secs) 73.64% 80.85% 57.28%


ECS Trending Table: SI Mode Stats
SI Mode Total Number of Obs. Total Exposure Time (sec) Average Exposure (sec/obs)
Primary 6 Chip SI Modes
TE_007AC 8 54536.00 6817.00
TE_007AE 7 46740.00 6677.14
TE_00B26 7 49098.00 7014.00
Old 6 Chip SI Modes
TE_00216 0 0.00 0.00
TE_0021C 0 0.00 0.00
TE_008EA 0 0.00 0.00
5 Chip SI Modes
TE_00C60 0 0.00 0.00
TE_00CA8 0 0.00 0.00
4 Chip SI Modes
TE_00C62 0 0.00 0.00


Back To Top

III. Statistics Since the Start of the Current Epoch

Total ECS Time:

ECS Trending Table: Total Time
Stats TE_007AC TE_007AE TE_00B26
Total Expected Time (secs) 53200 45600 53200
Total Actual Time (secs) 44819 41843 49098
Delta From Expected (secs) -8381.00 -3757.00 -4102.00
% of Expected Total (secs) 84.25% 91.76% 92.29%

Cold ECS Time:

ECS Trending Table: Cold Time
Stats TE_007AC TE_007AE TE_00B26
Total Exp. Cold Time (secs) 31920.0 27360.0 31920.0
Total Actual Cold Time (secs) 26863 20991 18283
Delta From Expected (secs) -5056.03 -6368.26 -13636.82
% of Exp. Cold Total (secs) 84.16% 76.72% 57.28%


ECS Trending Table: SI Mode Stats
SI Mode Total Number of Obs. Total Exposure Time (sec) Average Exposure (sec/obs)
Primary 6 Chip SI Modes
TE_007AC 7 44819.00 6402.71
TE_007AE 6 41843.00 6973.83
TE_00B26 7 49098.00 7014.00
Old 6 Chip SI Modes
TE_00216 0 0.00 0.00
TE_0021C 0 0.00 0.00
TE_008EA 0 0.00 0.00
5 Chip SI Modes
TE_00C60 0 0.00 0.00
TE_00CA8 0 0.00 0.00
4 Chip SI Modes
TE_00C62 0 0.00 0.00


Back To Top

IV. Statistics Since Mid 2012

Total ECS Time:

ECS Trending Table: Total Time
Stats TE_007AC TE_007AE TE_00B26
Total Expected Time (secs) 3473200 3458000 3404800
Total Actual Time (secs) 3807348 3733027 3759875
Delta From Expected (secs) 334148.52 275027.04 355075.42
% of Expected Total (secs) 109.62% 107.95% 110.43%

Cold ECS Time:

ECS Trending Table: Cold Time
Stats TE_007AC TE_007AE TE_00B26
Total Exp. Cold Time (secs) 2083920.0 2074800.0 2042880.0
Total Actual Cold Time (secs) 1895790 1875583 1756161
Delta From Expected (secs) -188129.86 -199216.97 -286718.70
% of Exp. Cold Total (secs) 90.97% 90.40% 85.96%


ECS Trending Table: SI Mode Stats
SI Mode Total Number of Obs. Total Exposure Time (sec) Average Exposure (sec/obs)
Primary 6 Chip SI Modes
TE_007AC 455 3754071.52 8250.71
TE_007AE 454 3723310.04 8201.12
TE_00B26 446 3664115.93 8215.51
Old 6 Chip SI Modes
TE_00216 5 478338.25 95667.65
TE_0021C 0 0.00 0.00
TE_008EA 0 0.00 0.00
5 Chip SI Modes
TE_00C60 2 16400.00 8200.00
TE_00CA8 1 9717.00 9717.00
4 Chip SI Modes
TE_00C62 2 132636.50 66318.25


Back To Top





Important Notes:

A word about the TOTAL Time stats:

    - The Total Expected Time values in the table below is calculated by taking the number of actual observations for each SI Mode and multiplying it by 7600.0.
    - Total Actual Time is the sum of all actual ECS measurement time for each of the three SI Modes.
    - % Expected Total is the fraction of the expected that we actually achieved, or:

         (Total Actual Time / Total Expected Time) * 100.0 A word about the COLD Time stats:

    - The Total Expected Cold Time value in the table below is 60.0% of the Total Expected Time (see Table above).
    - Total Actual Cold Time is the sum of all time during each measurement where the temperature was <= -118.7 degrees C
    - % of Expected Total is the fraction of the Total Expected Time achieved

Back To Top